A new study in the American Heart Association journal Hypertension suggests that probiotics (a.k.a., “good” bacteria) might offer another interesting benefit: Reduced blood pressure. Probiotics are well known to benefit gut health, the immune system, and possibly even brain health. And more recent evidence has shown that the benefits may also extend to metabolic measures like cholesterol and insulin sensitivity. And it’s likely through these avenues that the benevolent microbes exert their effect on blood pressure, particularly in people who have high blood pressure to begin with.